many fixes

??

app/src/main/java/ru/vtosters/hooks/music/injectors/TracklistInjector.java

@@ -246,7 +246,7 @@ public class TracklistInjector {
                     .put(getCatalogPlaylist());
         }
 
-        if (!MusicCacheImpl.getAllOwnTracks().isEmpty()) {
+        if (!PlaylistCacheDbDelegate.isPlaylistEmpty(AndroidUtils.getGlobalContext(), AccountManagerUtils.getUserId() + "_-1")) {
             if (MusicCacheImpl.hasPlaylist()) blocks.put(getCatalogSeparator());
             blocks.put(getCatalogHeader(AndroidUtils.getString(R.string.cached_tracks_title)))
                     .put(getShuffleButton())

app/src/main/java/ru/vtosters/lite/music/cache/MusicCacheImpl.java

@@ -59,12 +59,12 @@ public class MusicCacheImpl {
     }
 
     public static boolean hasPlaylist() {
-        return PlaylistCacheDbDelegate.getPlaylistsCount(AndroidUtils.getGlobalContext()) != 0; // has playlists or not
+        return !PlaylistCacheDbDelegate.isPlaylistsDbEmpty(AndroidUtils.getGlobalContext()); // has playlists or not
     }
 
     public static long getTracksCount() {
         return !LibVKXClient.isIntegrationEnabled()
-                ? MusicCacheDbDelegate.getTracksCount(AndroidUtils.getGlobalContext())
+                ? PlaylistCacheDbDelegate.getTracksCountInPlaylist(AndroidUtils.getGlobalContext(),AccountManagerUtils.getUserId() + "_-1")
                 : LibVKXClient.getInstance().runOnServiceSync(
                 new LibVKXClientImpl.LibVKXActionGeneric<Long>() {
                     @Override
@@ -89,7 +89,7 @@ public class MusicCacheImpl {
     }
 
     public static boolean isEmpty() {
-        return !LibVKXClient.isIntegrationEnabled() && getTracksCount() == 0L;
+        return !LibVKXClient.isIntegrationEnabled() && MusicCacheDbDelegate.isEmpty(AndroidUtils.getGlobalContext());
     }
 
     public static void clear() {

app/src/main/java/ru/vtosters/lite/music/cache/db/MusicCacheDb.java

@@ -174,6 +174,15 @@ public class MusicCacheDb extends SQLiteOpenHelper implements AutoCloseable { //
         return DatabaseUtils.queryNumEntries(getReadableDatabase(), Constants.TABLE_NAME);
     }
 
+    public boolean isDatabaseEmpty() {
+        SQLiteDatabase db = getReadableDatabase();
+        Cursor cursor = db.rawQuery("SELECT EXISTS(SELECT 1 FROM " + Constants.TABLE_NAME + " LIMIT 1)", null);
+        cursor.moveToFirst();
+        boolean isEmpty = cursor.getInt(0) == 0;
+        cursor.close();
+        return isEmpty;
+    }
+
     public MusicTrack getTrackById(String trackId) {
         SQLiteDatabase db = getReadableDatabase();
         Cursor cursor = db.query(Constants.TABLE_NAME, null, Constants.COLUMN_TRACK_ID + " = ?", new String[]{trackId}, null, null, null);

app/src/main/java/ru/vtosters/lite/music/cache/db/PlaylistCacheDb.java

@@ -53,8 +53,7 @@ public class PlaylistCacheDb extends SQLiteOpenHelper implements AutoCloseable {
                 Boolean.parseBoolean(cur.getString(cur.getColumnIndex(Constants.COLUMN_IS_EXPLICIT))),
                 cur.getString(cur.getColumnIndex(Constants.COLUMN_TITLE)),
                 cur.getString(cur.getColumnIndex(Constants.COLUMN_DESCRIPTION)),
-                photo,
-                0);
+                photo);
 
         Log.d("Playlist", "generated " + Playlist.U.a(playlist).v1());
 
@@ -170,6 +169,50 @@ public class PlaylistCacheDb extends SQLiteOpenHelper implements AutoCloseable {
         return playlists;
     }
 
+    public long getTracksCountInPlaylist(String playlistId) {
+        SQLiteDatabase db = getReadableDatabase();
+        Cursor cursor = db.query(
+                Constants.TABLE_PLAYLIST_TRACKS,
+                new String[]{Constants.COLUMN_TRACK_ID},
+                Constants.COLUMN_PLAYLIST_ID + " = ?",
+                new String[]{playlistId},
+                null, null, null
+        );
+
+        long count = cursor.getCount();
+        cursor.close();
+        return count;
+    }
+
+    public List<String> getAllPlaylistIds() {
+        SQLiteDatabase db = getReadableDatabase();
+        List<String> playlistIds = new ArrayList<>();
+        Cursor cursor = db.query(
+                Constants.TABLE_NAME,
+                new String[]{Constants.COLUMN_ID, Constants.COLUMN_OWNER_ID},
+                null, null, null, null, null
+        );
+
+        if (cursor.moveToFirst()) {
+            do {
+                String playlistId = cursor.getString(cursor.getColumnIndexOrThrow(Constants.COLUMN_OWNER_ID)) + "_" + cursor.getString(cursor.getColumnIndexOrThrow(Constants.COLUMN_ID));
+                playlistIds.add(playlistId);
+            } while (cursor.moveToNext());
+        }
+
+        cursor.close();
+        return playlistIds;
+    }
+
+    public boolean isPlaylistsDbEmpty() {
+        SQLiteDatabase db = getReadableDatabase();
+        Cursor cursor = db.rawQuery("SELECT EXISTS(SELECT 1 FROM " + Constants.TABLE_NAME + " LIMIT 1)", null);
+        cursor.moveToFirst();
+        boolean isEmpty = cursor.getInt(0) == 0;
+        cursor.close();
+        return isEmpty;
+    }
+
     public void addTrackToPlaylist(String playlistId, String trackId) {
         ContentValues values = new ContentValues();
         values.put(Constants.COLUMN_PLAYLIST_ID, playlistId);
@@ -181,6 +224,15 @@ public class PlaylistCacheDb extends SQLiteOpenHelper implements AutoCloseable {
         getWritableDatabase().delete(Constants.TABLE_PLAYLIST_TRACKS, Constants.COLUMN_PLAYLIST_ID + " = ? AND " + Constants.COLUMN_TRACK_ID + " = ?", new String[]{playlistId, trackId});
     }
 
+    public boolean isPlaylistEmpty(String playlistId) {
+        SQLiteDatabase db = getReadableDatabase();
+        Cursor cursor = db.rawQuery("SELECT EXISTS(SELECT 1 FROM " + Constants.TABLE_PLAYLIST_TRACKS + " WHERE " + Constants.COLUMN_PLAYLIST_ID + " = ? LIMIT 1)", new String[]{playlistId});
+        cursor.moveToFirst();
+        boolean isEmpty = cursor.getInt(0) == 0;
+        cursor.close();
+        return isEmpty;
+    }
+
     public List<MusicTrack> getTracksInPlaylist(String playlistId) {
         SQLiteDatabase db = getReadableDatabase();
         Cursor cursor = db.query(

app/src/main/java/ru/vtosters/lite/music/cache/delegate/MusicCacheDbDelegate.java

@@ -55,6 +55,12 @@ public class MusicCacheDbDelegate {
         }
     }
 
+    public static boolean isEmpty(Context context) {
+        try (var db = connectToDb(context)) {
+            return db.isDatabaseEmpty();
+        }
+    }
+
     public static boolean isCachedTrack(Context context, String trackId) {
         try (var db = connectToDb(context)) {
             return db.isCachedTrack(trackId);

app/src/main/java/ru/vtosters/lite/music/cache/delegate/PlaylistCacheDbDelegate.java

@@ -62,6 +62,31 @@ public class PlaylistCacheDbDelegate {
         }
     }
 
+    public static long getTracksCountInPlaylist(Context context, String playlistId) {
+        try (var db = connectToDb(context)) {
+            return db.getTracksCountInPlaylist(playlistId);
+        }
+    }
+
+    public static boolean isPlaylistsDbEmpty(Context context) {
+        try (var db = connectToDb(context)) {
+            return db.isPlaylistsDbEmpty();
+        }
+    }
+
+    public static void removeAllPlaylists(Context context) {
+        List<String> playlistIds = getAllPlaylistIds(context);
+        for (String playlistId : playlistIds) {
+            deletePlaylist(context, playlistId);
+        }
+    }
+
+    public static List<String> getAllPlaylistIds(Context context) {
+        try (var db = connectToDb(context)) {
+            return db.getAllPlaylistIds();
+        }
+    }
+
     public static boolean isCachedPlaylist(Context context, String id) {
         try (var db = connectToDb(context)) {
             String[] parts = id.split("_");
@@ -112,6 +137,12 @@ public class PlaylistCacheDbDelegate {
         }
     }
 
+    public static boolean isPlaylistEmpty(Context context, String playlistId) {
+        try (var db = connectToDb(context)) {
+            return db.isPlaylistEmpty(playlistId);
+        }
+    }
+
     public static void drop(Context context) {
         context.deleteDatabase(PlaylistCacheDb.Constants.DB_NAME);
     }

app/src/main/java/ru/vtosters/lite/music/cache/helpers/PlaylistHelper.java

@@ -7,6 +7,7 @@ import org.json.JSONArray;
 import org.json.JSONException;
 import org.json.JSONObject;
 import ru.vtosters.lite.music.cache.MusicCacheImpl;
+import ru.vtosters.lite.music.cache.delegate.PlaylistCacheDbDelegate;
 import ru.vtosters.lite.utils.AccountManagerUtils;
 import ru.vtosters.lite.utils.AndroidUtils;
 import ru.vtosters.lite.utils.NetworkUtils;
@@ -25,19 +26,19 @@ public class PlaylistHelper {
     public static JSONArray addCachedPlaylists(JSONArray jsonArray, Boolean noPlaylists) {
         try {
             if (noPlaylists) {
-                jsonArray.put(new JSONArray().put(getCachedSongsPlaylist()));
-            } else {
+                jsonArray.put(new JSONArray());
+            }
+
+            if (!PlaylistCacheDbDelegate.isPlaylistEmpty(AndroidUtils.getGlobalContext(), AccountManagerUtils.getUserId() + "_-1")) {
                 jsonArray.put(getCachedSongsPlaylist());
             }
 
-            for (Playlist playlist : MusicCacheImpl.getPlaylists()) {
-                if (noPlaylists) {
-                    jsonArray.put(new JSONArray().put(generatePlaylist(playlist.a, playlist.b, playlist.C, playlist.g, playlist.B, PlaylistUtils.getThumb(playlist), playlist.O)));
-                } else {
-                    jsonArray.put(generatePlaylist(playlist.a, playlist.b, playlist.C, playlist.g, playlist.B, PlaylistUtils.getThumb(playlist), playlist.O));
-                }
+            if (MusicCacheImpl.hasPlaylist()) {
+                for (Playlist playlist : MusicCacheImpl.getPlaylists()) {
+                    jsonArray.put(generatePlaylist(playlist.a, playlist.b, playlist.C, playlist.g, playlist.B, PlaylistUtils.getThumb(playlist)));
 
-                Log.d("PlaylistHelper", "Playlist cache added: " + playlist.a + " " + playlist.b + " " + playlist.C + " " + playlist.g + " " + playlist.B);
+                    Log.d("PlaylistHelper", "Playlist cache added: " + playlist.a + " " + playlist.b + " " + playlist.C + " " + playlist.g + " " + playlist.B);
+                }
             }
         } catch (JSONException e) {
             e.fillInStackTrace();
@@ -45,7 +46,7 @@ public class PlaylistHelper {
         return jsonArray;
     }
 
-    public static JSONObject generatePlaylist(int id, int owner_id, boolean is_explicit, String title, String description, JSONObject photo, int count) throws JSONException {
+    public static JSONObject generatePlaylist(int id, int owner_id, boolean is_explicit, String title, String description, JSONObject photo) throws JSONException {
         JSONObject playlist = new JSONObject()
                 .put("id", id)
                 .put("owner_id", owner_id)
@@ -64,7 +65,7 @@ public class PlaylistHelper {
                 .put("subtitle", "")
                 .put("meta", new JSONObject()
                         .put("view", "compact"))
-                .put("count", count);
+                .put("count", 0);
 
         if (photo != null) {
             playlist.put("photo", photo);
@@ -101,18 +102,18 @@ public class PlaylistHelper {
                         .put("height", 600))
                 .put("meta", new JSONObject()
                         .put("view", "compact"))
-                .put("count", MusicCacheImpl.getAllOwnTracks().size());
+                .put("count", 0);
     }
 
     public static JSONArray getCachedPlaylistsIds() {
         JSONArray arr = new JSONArray();
 
-        if (NetworkUtils.isNetworkConnected() && !MusicCacheImpl.getAllOwnTracks().isEmpty()) {
+        if (NetworkUtils.isNetworkConnected() && !PlaylistCacheDbDelegate.isPlaylistEmpty(AndroidUtils.getGlobalContext(), AccountManagerUtils.getUserId() + "_-1")) {
             arr.put(AccountManagerUtils.getUserId() + "_-1");
         }
 
-        for (var playlist : MusicCacheImpl.getPlaylists()) {
-            arr.put(playlist.v1());
+        for (String playlist : PlaylistCacheDbDelegate.getAllPlaylistIds(AndroidUtils.getGlobalContext())) {
+            arr.put(playlist);
         }
 
         return arr;

app/src/main/java/ru/vtosters/lite/music/cache/helpers/TracklistHelper.java

@@ -28,7 +28,7 @@ public class TracklistHelper {
 
         boolean doNotinvertOrder = Preferences.getBoolValue("invertCachedTracks", false);
 
-        if (!doNotinvertOrder) {
+        if (doNotinvertOrder) {
             Collections.reverse(tracks);
         }
 

app/src/main/java/ru/vtosters/lite/ui/fragments/MusicFragment.java

@@ -20,6 +20,7 @@ import ru.vtosters.lite.music.LastFMScrobbler;
 import ru.vtosters.lite.music.cache.MusicCacheImpl;
 import ru.vtosters.lite.music.cache.delegate.PlaylistCacheDbDelegate;
 import ru.vtosters.lite.ui.PreferenceFragmentUtils;
+import ru.vtosters.lite.utils.AccountManagerUtils;
 import ru.vtosters.lite.utils.AndroidUtils;
 import ru.vtosters.lite.utils.LifecycleUtils;
 
@@ -55,7 +56,7 @@ public class MusicFragment extends TrackedMaterialPreferenceToolbarFragment {
                     if (MusicCacheImpl.isEmpty()) {
                         AndroidUtils.sendToast(requireContext().getString(com.vtosters.lite.R.string.no_cache_error));
                     } else {
-                        delcache(requireContext());
+                        delcache(requireContext(), false);
                     }
                     return true;
                 }
@@ -73,6 +74,18 @@ public class MusicFragment extends TrackedMaterialPreferenceToolbarFragment {
                         return true;
                     }
             );
+
+            PreferenceFragmentUtils.addPreference(
+                    getPreferenceScreen(),
+                    "cached_playlists",
+                    "Удалить все скачанные плейлисты",
+                    null,
+                    null,
+                    preference -> {
+                        delcache(requireContext(), true);
+                        return true;
+                    }
+            );
         }
 
         PreferenceFragmentUtils.addPreference(
@@ -443,12 +456,18 @@ public class MusicFragment extends TrackedMaterialPreferenceToolbarFragment {
         builder.show();
     }
 
-    private void delcache(Context ctx) {
+    private void delcache(Context ctx, boolean isPlaylists) {
         new VkAlertDialog.Builder(ctx)
                 .setTitle(com.vtosters.lite.R.string.warning)
                 .setMessage(com.vtosters.lite.R.string.cached_tracks_remove_confirm)
                 .setPositiveButton(com.vtosters.lite.R.string.yes, (dialog, which) -> {
-                    executor.submit(MusicCacheImpl::clear);
+                    executor.submit(() -> {
+                        if (isPlaylists) {
+                            PlaylistCacheDbDelegate.removeAllPlaylists(ctx);
+                        } else {
+                            PlaylistCacheDbDelegate.deletePlaylist(ctx, AccountManagerUtils.getUserId() + "_-1");
+                        }
+                    });
                     findPreference("cached_tracks").setSummary(String.format(requireContext().getString(com.vtosters.lite.R.string.cached_tracks_counter), MusicCacheImpl.getTracksCount()));
                 })
                 .setNeutralButton(com.vtosters.lite.R.string.no, (dialog, which) -> dialog.cancel())